Become admin of a trial

I started a trial with Canvas and I'm curious if there's a way to become admin of the trial. In the end I need my client_id, client_secret and refresh_token. If there's another way to find those, the admin question is irrelevant. Any help is appreciated.

If you want a client_id and client_secret so you can try out some API calls, then instead you can simply go to Account - Settings and under Approved Integrations generate an access token you can use for trying out the API.